webcontainer-core VS middleclass

How does it work? There is no backend whatsoever. The API Security Academy leverages WebContainers, a new technology that allows running full-blown node instances directly in the browser. Each WebContainer contains a live GraphQL application, so you'll not only understand why a vulnerability is risky, but also how to exploit it and, most importantly, how to fix it.

StackBlitz made the claim "... run Node.js, entirely inside your browser" #658, then had to revise it's claim to "We currently do not expose a way to use WebContainer outside of StackBlitz.com,".

> Wasm though seems like the likely general heir, and will have many different offerings for how to do that (Deno being one!).

I was recently blown away by some ideas that StackBlitz [0] apply based on WebContainers. The idea of a "server in the browser", they allow you to run Node-based environment like that via Wasm.

[0] https://stackblitz.com/

[1] https://webcontainers.io/

See https://webcontainers.io.

This very simple fact is well known flaw, which was already often criticized and asked for solutions by users. It doesn't only affect this kind of very exotic bootstrap applications but also significantly limits rusts usefulness in many other areas. Pure browser based scientific code documentation and example notebooks (e.g. jupyterLite) and sandboxed CI and IDE solutions (e.g. web containers) as available for many other languages are simply not available for rust because of this very fundamental issue.

Looks like they plan to open it. From the FAQ section of README (https://github.com/stackblitz/webcontainer-core#faqs):

> Is there a developer API?

I'm skeptical about stackblitz claims. The last time I checked that is closed source code https://github.com/stackblitz/webcontainer-core/issues/658.

StackBlitz claimed https://blog.stackblitz.com/posts/introducing-webcontainers/ to have implemented Node.js in the browser, though I have not observed any evidence of that being true and correct https://github.com/stackblitz/webcontainer-core/issues/658.

The other honorable mention is StackBlitz, a web-based web editor for making containers that run Javascript applications. Interestingly, StackBlitz is championing WebContainers, a technology that allows developers to start NodeJS servers within the browser. The downside is, this technology only works with Javascript-based projects (NodeJS, NextJS, etc). I include it here because WebContainers could easily be extended to support other languages via WASM, like Ruby. I’ll also add in Buildah, a tool for building OCI images. I won’t say much about this tool because it’s designed for building images; you still need another service, like Podman, to actually create the containers.

I am trying to document my code and I am using LDoc for that and for OOP I am using the library middleclass. All of my classes are in a main framework folder and inside that I have each namespace as a folder and then classes that are specific to that namespace in those folders.

The ConTeXt typesetting system tightly integrates Lua. One aspect of Lua that I dislike is its inability to easily write OOP-ish code. What's impressive about the language is that it can be extended to do so in astonishingly little code:

* https://github.com/kikito/middleclass

With OOP in place, I was able to typeset a hexagonal grid and a symbolic representation of a neural network on top, using a more OOP-like approach. The classes are straightforward.

A vertex defines a point in 2D space:

* https://github.com/DaveJarvis/keenwrite-themes/blob/main/bos...

An edge connects two vertices:

* https://github.com/DaveJarvis/keenwrite-themes/blob/main/bos...

A graph connects edges:

* https://github.com/DaveJarvis/keenwrite-themes/blob/main/bos...

A priority queue serves for ordering graph edges by weight of adjoining vertices:

* https://github.com/DaveJarvis/keenwrite-themes/blob/main/bos...

With these concepts in hand, we can typeset a grid and a "neural network" on top:

* https://github.com/DaveJarvis/keenwrite-themes/blob/main/bos...

Here's an example of the output for chapter 1:

* https://i.ibb.co/19DCDZy/ch-1.png

And chapter 14, where the "network" has grown in complexity:

* https://i.ibb.co/ncf16vg/ch-2.png

This is for my near future hard sci-fi book on AGI. I'm looking for alpha readers to give me feedback. See profile for contact details.

To reduce the amount of boilerplate code, I created the fork of middleclass repo suitable for Neovim plugin managers: it just adds a symlink to middleclass.lua file in lua/ directory. middleclass is well known and tested, so I suggest using it as a standard class realization. I also open a pull request to merge it upstream.

Not exactly what op asked, but if you want classes in Lua definitely check out https://github.com/kikito/middleclass

Like /u/TheMightyHUG pointed out below, there are patterns you can use to do OOP without any extra help. In the past I have used some libraries to improve the ease of doing so, specifically middleclass: https://github.com/kikito/middleclass

Same, but when I do I like when authors include everything in one file so it's easy to manage. Here we have the library, some small 10 line file with helper functions that's required and we also need to remember about the licence. Take middleclass as an example, one file, license included, ready to plug and develop.